US3787164A - Device for the manufacture of a row of linking components for a slide fastener - Google Patents

Device for the manufacture of a row of linking components for a slide fastener Download PDF

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Publication number
US3787164A
US3787164A US00186612A US3787164DA US3787164A US 3787164 A US3787164 A US 3787164A US 00186612 A US00186612 A US 00186612A US 3787164D A US3787164D A US 3787164DA US 3787164 A US3787164 A US 3787164A
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US
United States
Prior art keywords
thread
guide
punch
studs
crushing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00186612A
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English (en)
Inventor
H Jakob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FINANC FR DE LICENSES ET BREVE
SOC FINANCIERE FR DE LICENSES ET BREVETS FR
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FINANC FR DE LICENSES ET BREVE
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Publication of US3787164A publication Critical patent/US3787164A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
    • B29D5/04—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners the interlocking members being formed by continuous meander of filamentary material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/814—Zipper

Definitions

  • the notches between the studs must therefore be narrower in width than the linking components formed by crushing the thread.
  • the thread is positioned between the studs by means of a thread'guide to which a to-and-fro movement is imparted in a direction parallel to its axis so as to place the thread first in one direction then in the other inside each notch.
  • the stud support is kept still, but a movement equal to the space between two of the notches is subsequently imparted to it to bring the next notch in front of the thread-guide.
  • the punch used for this purpose consists of the thread-guide itself which has several disadvantages.
  • This process is characterised in that on the crushingpoint side of each whorl, the thread is stretched out rectilinearly beyond this point, and facing the corresponding side face of the threadguide, and in that the required point along the thread is then crushed against this part, which is thus used as an anvil, while the punch used is independent of the other working tools, the thread being folded back subsequently.
  • This invention also covers a device specially designed for putting this manufacturing process into operation.
  • a form of embodiment of this device is described below, together with an example of the operating of this process. This description is given with reference to the drawing attached as an indication only, wherein:
  • FIG. 1 is a partial sectional view of the manufacturing device in accordance with the invention, shown after the thread has been folded back,
  • FIG. 2 is a similar view showing this device at the moment when the thread-guide begins to stretch out a portion of thread rectilinearly, 1
  • FIGS. 3 to 5 are similar sectional views illustrating the later phases of manufacture
  • FIGS. 6 to 8 are partial perspective views of the same device, showing it in the positions already illustrated in FIGS. 1, 4 and 5.
  • the device shown comprises a circular plate 1 equipped with studs 2 around its periphery.
  • the width e of each of the latter corresponds to the required distance between two successive whorls of the spiral to be made out ofa plastic thread 3 to form a continuous row of linking components for a slide fastener.
  • This part is transpierced from side to side by a hole 7 oriented radially in relation to the plate I.
  • the plastic thread 3 is threaded through this hole so as to be placed by the thread-guide in the notches between the teeth .of the plate, as will be described in detail further on.
  • the thread-guide includes a brake designed to prevent any possibility of the thread going backwards.
  • This brake consists of a push-rod 8 subjected to the action of a spring 9 and of which the end in contact with the thread is chamfered to prevent the latter going backwards, while allowing it to slide in the direction F3.
  • the plate I is mounted to rotate around its axis and is fitted with drive means capable of intermittently imparting to it an angular movement in the direction of the arrow F4, equal to the width E between two successive notches 10 in its periphery so that each of these is successively brought opposite the hole 7 in the threadguide 6. synchronisation of the latters drive means and those of the toothed plate 1 is such that the latters intermittent angular movement occurs after a whorl of the spiral has been formed.
  • a punch 11 is provided, designed to crush the thread 3 which can later form a linking component.
  • This punch offers the peculiarity that it consists of a part which is independent of the other components of this device.
  • This punch 11 is positioned facing the face of the plate I towards which the thread 3 is first of all drawn.
  • This punch has a simple to-and-fro movement imparted to it in a direction F5 parallel to the plate I and in the radial plane of the latter which passes through the outlet of the hole 7.
  • This punch is positioned facing the corresponding flat face 6a of the thread-guide which can thus serve as an anvil when the thread 3 is crushed.
  • the thread-guide 6 is moved in the direction of the arrow F], as shown in FIGS. 2 and 3. During this movement, the thread-guide exerts a pull on the plastic thread 3 which it deposits in the corresponding notch 10.
  • the mode of arrangement is such that the thread-guide continues its movement until it is in the position shown in FIG. 4 and is situated at a certain distance from the crushing punch 11.
  • the thread-guide has thus drawn a considerable length of thread beyond the latter, rectilinearly. This length extends facing the corresponding flat face 6a of the thread-guide, which is parallel to the axis of the toothed plate.
  • the thread-guide 6 again has a movement imparted to it, but in the opposite direction F2, the result of which is to exert a pull on the thread in this direction.
  • This pull causes the corresponding portion of the thread to fold at its point of crushing 13.
  • the thread-guide then continues its movement until it reaches its maximum up position shown in FIG. I, after which the device is again ready to carry out a further working cycle as previously described.
  • the shaping of the linking components is effected under optimum conditions, as the crushing of the thread is done on a rectilinear portion thereof. Moreover, a substantial length of thread is held rectilinearly against the corresponding face of the thread-guide beyond the crushing point. In these circumstances, the thread can spread out perfectly flat against the flat face 6a of the thread-guide which constitutes an anvil. This consequently makes it possible to obtain the shape required for each linking component very precisely. Now, the same does not apply to the former process mentioned previously, as in that process, the crushing of the thread is always done next to a folded, or at least partly bent, portion of thread.
  • the crushing punch 11 is completely independent of the other components of this device.
  • the movement of the thread-guide is very simple, since it is a to-and-fro movement in a direction parallel to the axis of the toothed plate.
  • the crushing punch itself has an equally simple to-and-fro movement parallel to one of the spokes of this plate.
  • the simplicity of these movements makes a very high rate of production possible. Now, this is not possible in the former process previously mentioned, which uses a thread-guide with a more complicated movement.
  • the device covered by the invention has the advantage of comprising a very simple construction since it is made up of only three main components, i.e.: the toothed plate used to form the spiral, the threadguide also uses as an anvil, and finally the threadcrushing punch.
  • Apparatus for the production of a continuous run of linking components for a slide fastener using a plastic thread comprising a forming member including a plurality of extending studs having spaces defined therebetween, forming member drive means for stepwisely moving said forming member selected increments to advance said studs in a selected path, thread guide means mounted for reciprocation in a linear path paralleling said spaces, said guide means including a thread feed aperture in proximate spaced relation to the ends of said studs and aligned with said spaces for placing the thread in position within the spaces between said studs responsive to said reciprocatory movement, an anvil portion on said guide means facing said studs, punch means disposed at one side of said path of said studs shiftable toward and away from said anvil for crushing a thread portion disposed on said anvil, thread guide drive means operatively connected to said thread guide means for shifting said guide means in said linear path between first and second limiting positions, respectively, with said feed aperture extending to the opposite side of said path from said punch means and with

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Slide Fasteners (AREA)
US00186612A 1970-10-08 1971-10-05 Device for the manufacture of a row of linking components for a slide fastener Expired - Lifetime US3787164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR707036379A FR2108816B1 (enrdf_load_stackoverflow) 1970-10-08 1970-10-08

Publications (1)

Publication Number Publication Date
US3787164A true US3787164A (en) 1974-01-22

Family

ID=9062469

Family Applications (1)

Application Number Title Priority Date Filing Date
US00186612A Expired - Lifetime US3787164A (en) 1970-10-08 1971-10-05 Device for the manufacture of a row of linking components for a slide fastener

Country Status (4)

Country Link
US (1) US3787164A (enrdf_load_stackoverflow)
DE (1) DE2150350A1 (enrdf_load_stackoverflow)
FR (1) FR2108816B1 (enrdf_load_stackoverflow)
GB (1) GB1328076A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897192A (en) * 1973-06-09 1975-07-29 Opti Holding Ag Apparatus for making monofilamentary slide-fastener members
US4052145A (en) * 1975-03-05 1977-10-04 Turo Stenhall Apparatus for manufacturing slide fastener filament
US4150086A (en) * 1975-03-05 1979-04-17 Turo Stenhall Method for manufacturing slide fastener filament

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176637A (en) * 1962-07-30 1965-04-06 Talon Inc Means for manufacturing slide fastener stringers
US3197537A (en) * 1960-11-08 1965-07-27 Hansen Harry Apparatus and method for manufacturing slide fasteners
US3220055A (en) * 1959-08-04 1965-11-30 Wahl Brothers Apparatus for making interlocking zipper elements
US3229362A (en) * 1963-06-07 1966-01-18 Yoshida Kogyo Kk Method of manufacturing engaging elements for clasp slide fasteners
US3262157A (en) * 1963-11-13 1966-07-26 Yoshida Kogyo Kk Method and apparatus for manufacturing coiled fastener elements
US3337672A (en) * 1963-05-08 1967-08-22 Steingrubner Arthur Method of making a slide fastener of the continuous wire type
US3353217A (en) * 1966-04-15 1967-11-21 Ideal Fastener Corp Forming apparatus for helical slide fastener elements
US3461486A (en) * 1966-10-27 1969-08-19 Hans Porepp Apparatus for making a continuous row of slide-fastener links from a plastic thread
US3541638A (en) * 1966-12-14 1970-11-24 Hans Porepp Apparatus for producing continuous rows of sliding clasp fastener link members
US3666853A (en) * 1969-05-02 1972-05-30 Naegele Feinmaschinenbau Method of manufacturing a continuous stringer for a sliding clasp fastener
US3672805A (en) * 1969-12-08 1972-06-27 Bernd Porepp Apparatus for forming a plastic article

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3220055A (en) * 1959-08-04 1965-11-30 Wahl Brothers Apparatus for making interlocking zipper elements
US3197537A (en) * 1960-11-08 1965-07-27 Hansen Harry Apparatus and method for manufacturing slide fasteners
US3176637A (en) * 1962-07-30 1965-04-06 Talon Inc Means for manufacturing slide fastener stringers
US3337672A (en) * 1963-05-08 1967-08-22 Steingrubner Arthur Method of making a slide fastener of the continuous wire type
US3229362A (en) * 1963-06-07 1966-01-18 Yoshida Kogyo Kk Method of manufacturing engaging elements for clasp slide fasteners
US3262157A (en) * 1963-11-13 1966-07-26 Yoshida Kogyo Kk Method and apparatus for manufacturing coiled fastener elements
US3353217A (en) * 1966-04-15 1967-11-21 Ideal Fastener Corp Forming apparatus for helical slide fastener elements
US3461486A (en) * 1966-10-27 1969-08-19 Hans Porepp Apparatus for making a continuous row of slide-fastener links from a plastic thread
US3541638A (en) * 1966-12-14 1970-11-24 Hans Porepp Apparatus for producing continuous rows of sliding clasp fastener link members
US3666853A (en) * 1969-05-02 1972-05-30 Naegele Feinmaschinenbau Method of manufacturing a continuous stringer for a sliding clasp fastener
US3672805A (en) * 1969-12-08 1972-06-27 Bernd Porepp Apparatus for forming a plastic article

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897192A (en) * 1973-06-09 1975-07-29 Opti Holding Ag Apparatus for making monofilamentary slide-fastener members
US4052145A (en) * 1975-03-05 1977-10-04 Turo Stenhall Apparatus for manufacturing slide fastener filament
US4150086A (en) * 1975-03-05 1979-04-17 Turo Stenhall Method for manufacturing slide fastener filament

Also Published As

Publication number Publication date
GB1328076A (en) 1973-08-30
FR2108816B1 (enrdf_load_stackoverflow) 1973-01-12
DE2150350A1 (de) 1972-04-13
FR2108816A1 (enrdf_load_stackoverflow) 1972-05-26

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